This idea stolen from CJ who got it from someone else:

"List all the characters you play in various RP associations, and those who reply may ask whatever questions they wish of the listed characters. Replies will be in-character to those who reply. Also, feel free to use one of your character's journals if you want."

Roxas - KH2
Demyx - KH2
Marluxia - KH2
Saix - KH2
Zexion - KH2
Xaldin - KH2
Lexaeus - KH2
Brandon - complicated
Kyviera Starglance - Original
Belaramiel Perendhal - Original
Acantha - Original
Janus - Original
Roxane - Original